Highly variable sleep schedule increases risk for suicidal college students

A new study that’s the subject of a presentation at SLEEP 2010 is the first to show sleep schedules can predict an elevated suicide risk, independent of depression.A sample of at-risk undergraduate students at the Florida State University had an average bedtime of 2:08 a.m. that varied by about three hours on any given night. They slept around 6.3 hours a night.Sleep schedule variability was the